Hobie makes two different half models, the Convertible (that is the one on the picture) and the regular half Skippers harness. The Hobie convertible has shoulder straps that can be taken off (hence the name convertible). The back and hip support in this harness are great, the bucket is very stiff and has a lumbar support build in. The regular Hobie half (Skippers) harness does not have shoulder straps, nor does it have the support or stiffness that the Convertible has (but it is cheaper!). We have the Convertibles and love them.